Machine Learning and Knowledge Discovery in Databases: European Conference, ECML PKDD 2019, Würzburg, Germany, September 16–20, 2019, Proceedings, Part III - Brefeld; Fromont, Elisa; Hotho, Andreas; Knobbe, Arno; Maathuis, Marloes; Robardet, Céline (Springer International Publishing, 2020)